John Gill Commentary Leviticus 19:5

"And when ye offer a sacrifice of peace-offerings unto Jehovah, ye shall offer it that ye may be accepted." — Leviticus 19:5 (ASV)

And if you offer a sacrifice of peace offerings unto the Lord ,
&c.] Which were of three sorts, a thanksgiving, a vow, and a voluntary offering, (Leviticus 7:11Leviticus 7:12Leviticus 7:16); the latter seems to be here meant, as appears by what follows:

you shall offer it at your own will ;
a voluntary freewill offering, of their own accord, and not by force, as Aben Ezra; and in such offerings they were left to their liberty to offer what they pleased, it might be of the flock, or of the herd, a male or a female, (Leviticus 3:1Leviticus 3:6).

The Targum of Jonathan is ``for your acceptation;'' that is, that should be offered, and in such a manner as to be accepted of you with God; which sense is countenanced by (Leviticus 19:7); and becomes acceptable, when what follows about eating them is attended to.